Jonno said:Sorry, I was showing my ignorance earlier - Prologic's channels are left, right, centre and mono rear. So if they could be decoded within the digital realm (no idea if this is possible), it would be a simple case to reassign them to the respective channels within 5.1, dupe the mono surround to both rear channels, and slot in the LFE.
The levels might need a bit of fiddling, but really it's the decoding that would be the hard part. Any ideas?
Well if you have software like WINDVD & a 5.1 soundcard you can play the soundtrack in this using WINDVD's dolby surround setting. You can record this on-the-fly by setting your record source selection in your mixer to "what you hear" in something like soundforge. you will then have the 6 channels. Save each separate channel as a mono wav files. Now you will have to re-sync this before making your 5.1 AC3. You can do this easily by ripping the GOUT video & audio to 2 separate files (make sure your ripping software doesn't split the files). convert the GOUT's AC3 to stereo wav in besweet. Import the ripped VOB file, stereo wav & your 6 separate mono files into a new project (audio set to 5.1) Sony vegas. chose the surround channel for each wav file (in the left panel of each audio track where you see the surround mixer for each track. just drag the diamond shape to the desired speaker and click on the remaining ones to mute them. for the LFE you will need to right click on the surround panel and chose LFE only. ). Now the LFE you recorded with your surround mix you can discard. Use the original LFE from the 2.1 mix. This should already be synced with the GOUT. Select (highlight) the remaining 5 mono files in vegas and right click on one of the highlighted files and select "Group> create new". these files are now locked together . all you have to do now is align the beginning of the Fox theme in your mono files with the beginning of the GOUT (easy to see thanks to the wavform). now play the track. You should not hear any sort of echoing effect when you play the surround channels with the original GOUT stereo wav. Once you have the sync set, mute all other tracks apart from your 5.1 mix and you can use Vegas to export your AC3
Simple. lol